129 citations · 854 across the 31 of their papers we have counts for
4 papers · 1 filter
Relativistic bias in neutrino cosmologies
Christian Fidler, Nils Sujata, Maria Archidiacono
Halos and galaxies are tracers of the underlying dark matter structures. While their bias is well understood in the case of a simple Universe composed dominantly of dark matter, th…
Suitable Initial Conditions for Newtonian Simulations with Massive Neutrinos
Christian Fidler, Alexander Kleinjohann
Initial conditions for cosmological N-body simulations are usually calculated by rescaling the present day linear power spectrum obtained from an Einstein-Boltzmann solver to the i…
A Relativistic Interpretation of Bias in Newtonian Simulations
Christian Fidler, Nils Sujata, Cornelius Rampf
Observables of cosmic structures are usually not the underlying matter field but biased tracers of matter, such as galaxies or halos. We show how the bias found in Newtonian N-body…
A new approach to cosmological structure formation with massive neutrinos
Christian Fidler, Alexander Kleinjohann, Thomas Tram +2
We show how Newtonian cosmological simulations can be employed to investigate the non-linear evolution of two particle species in a relativistic context. We discuss the application…